tiny_mce的本地图片上传插件

做项目是需要将本地图片上传到服务器，可是tiny_mce自带的image插件不能很好的实现， tiny_mce需要动的输入图片地址，这个地址还得是服务器上的地址。所以不满足需要，需要改进。

通常的办法就是使用ajax把图片提交到服务器，然后返回图片在服务器上的地址，然后再把返回的地址写到地址栏里，这就ok了。

下面给出我写的代码：

如果你不懂ajaxfileupload请看http://www.phpletter.com/Our-Projects/AjaxFileUpload/

jsp页面：需要引入jquery.js 和ajaxfileupload.js,注意jquery.js需要放在前面，如果放在后面的话，不会执行下面的方法。

	<script type="text/javascript" src="../../../js/jquery.js"></script>

	<script type="text/javascript" src="../../utils/ajaxfileupload.js"></script>	

<script  type="text/javascript">
	function uploadFiles() {
		 $.ajaxFileUpload({	    	
	           url:'http://localhost:8080/fangdo/admin/uploadPhoto.action',        
	           secureuri:false,
	           fileElementId:'file',
	           dataType: 'json',
	           success: function (result, statu) {    
		                  if (result.status == 'success'){
		                	  $("#src").val(result.src);
				              ImageDialog.showPreviewImage(result.src);
		                        
		                  }else {
		                	  alert(result.status);
			              }
	                  },
                error: function (result, status, e) {    
              	 
                       alert(e);
               		 }
	           })
    }
</script>

<tr>
		<td><a href="#" onClick="uploadFiles();"><script>document.write('\文件上传')</script></a></td>							
		<td><input style="WIDTH: 250" id="file" name="file" type="file"></td>
</tr>

// photo upload
	public void uploadPhoto() throws ActionException {

		String realDir = getSession().getServletContext().getRealPath("");
		HttpServletRequest request = ServletActionContext.getRequest();
		String contextpath = request.getContextPath();
		String basePath = request.getScheme() + "://" + request.getServerName()
				+ ":" + request.getServerPort() + contextpath + "/";
		
		String status = "error";
		
		try {
			String filePath = "uploads";
			String imagePath = "image" ;
			String realPath = realDir + "\\" + filePath+"\\"+imagePath;

			// 判断路径是否存在，不存在则创建
			File dir = new File(realPath);
			if (!dir.isDirectory())
				dir.mkdir();
			
			//// Check that we have a file upload request
			if (ServletFileUpload.isMultipartContent(request)) {//为什么要判断看后面注 				DiskFileItemFactory dff = new DiskFileItemFactory();
				dff.setRepository(dir);
				dff.setSizeThreshold(1024000);
				//// Create a new file upload handler
				ServletFileUpload servletFileUpload = new ServletFileUpload(dff);
				FileItemIterator fileItemIterator = null;
				// Parse the request
				servletFileUpload.setHeaderEncoding("UTF-8"); // 设置编码，因为我的jsp页面的编码是utf-8的
				fileItemIterator = servletFileUpload.getItemIterator(request);

				String tilte = "";// 标题
				String url = "";
				String fileName = "";
				String realFileName = "";
			
				  
				while (fileItemIterator.hasNext()) {
					FileItemStream fis = fileItemIterator.next();
					try {
						if (!fis.isFormField() && fis.getName().length() > 0) {
							fileName = fis.getName();
							Pattern reg = Pattern.compile("[.]jpg|png|jpeg|gif$");
							Matcher matcher = reg.matcher(fileName);
							if (!matcher.find()) {
								status = "文件格式不对";
								break;
							}

							realFileName = new Date().getTime()
									+ fileName.substring(
											fileName.lastIndexOf("."),
											fileName.length());
							url = realPath + "\\" + realFileName;

							BufferedInputStream in = new BufferedInputStream(fis.openStream());
							FileOutputStream fous = new FileOutputStream(new File(url));
							BufferedOutputStream out = new BufferedOutputStream(fous);
							Streams.copy(in, out, true);
							status="success";
							

						} /*else {
							String fname = fis.getFieldName();
							if (fname.indexOf("pictitle") != -1) {
								BufferedInputStream in = new BufferedInputStream(fis.openStream());
								byte c[] = new byte[10];
								int n = 0;
								while ((n = in.read()) != -1) {
									tilte = new String(c, 0, n);
									break;
								}
							}

						}
*/
					} catch (IOException e) {
						e.printStackTrace();
					}
				}
				HttpServletResponse respone = ServletActionContext.getResponse();
				respone.setContentType("text/html");
				respone.setCharacterEncoding("UTF-8");
				respone.setStatus(200);
				String retxt = "{src:'" +  contextpath +"/"+ filePath + "/"+imagePath+"/"
						+ realFileName + "',status:'"+status+"'}";
				respone.getWriter().print(retxt);

			}

		} catch (Exception e) {
			e.printStackTrace();
		}

	}

配置文件：

<action name="uploadPhoto" class="com.fangdo.action.CmsTitleAction" method="uploadPhoto">
		</action>
		

注：1、检查request是否是一个上传请求

// Check that we have a file upload request
boolean isMultipart = ServletFileUpload.isMultipartContent(request);

静态方法isMultipartContent代码：就是判断contentType是否是multipart/

这就是为什么form类型要设成multipart/form-data吧

public static final boolean isMultipartContent(
            HttpServletRequest request) {
        if (!"post".equals(request.getMethod().toLowerCase())) {
            return false;
        }
        String contentType = request.getContentType();
        if (contentType == null) {
            return false;
        }
        if (contentType.toLowerCase().startsWith(MULTIPART)) {
            return true;
        }
        return false;
    }

 public static final String MULTIPART = "multipart/";